THERMODYNAMICAL CORRECTNESS OF GAS-SOLID ADSORPTION-ISOTHERM EQUATIONS

被引：57

作者：

TOTH, J

机构：

[1] Research Laboratory for Mining Chemistry, Hungarian Academy of Sciences, Miskolc-Egyetemvaros, H-3515

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1994年 / 163卷 / 02期

关键词：

D O I：

10.1006/jcis.1994.1107

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Based on a modified form of the Gibbs equation, two conditions of thermodynamical correctness have been defined. According to these conditions the change in the free energy of the surface-calculable from all isotherm equations-must have finite limiting values at THETA --> 0 and THETA - 1. It has been proved that most of the known and widely used isotherm equations are, from a thermodynamic standpoint, incorrect. These incorrect relationships can be transformed into correct ones with the help of a differential equation including the change in the relative free energy of the surface. The transformation mentioned above modifies the original physical models of physical adsorption. (C) 1994 Academic Press, Inc.

引用

页码：299 / 302

页数：4

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